If you’ve ever pieced together a jigsaw puzzle, you’ve likely noticed the unique shapes and connections that make up each piece. But have you ever stopped to wonder what are the parts of a jigsaw puzzle piece called? From the rounded tabs to the hollow spaces, every part of a puzzle piece has a name—and sometimes even multiple names.
The terminology can be as puzzling as the activity itself! For instance, the protruding tabs are often called “interjambs” or “knobs,” while the hollowed spaces go by “blanks,” “sockets,” or even “slots.” And that’s just the beginning. Whether it’s the edge pieces, corner pieces, or the quirky “dancing man” shapes, each part plays a crucial role in bringing the bigger picture to life.
Understanding these terms adds a new layer of appreciation to puzzling, transforming what might seem like random shapes into a fascinating system of design.
What Are the Parts of a Jigsaw Puzzle Piece Called: Understanding Jigsaw Puzzle Pieces
Jigsaw puzzle pieces are designed with interlocking features that ensure all the pieces fit together to form a complete image. Each puzzle piece consists of distinct parts that serve a functional purpose in the assembly process. The protruding tabs, often referred to as “interjambs” or “knobs,” secure adjacent pieces, while the indented spaces, known as “blanks,” “holes,” or “sockets,” provide a matching counterpart for these protrusions.

Edge pieces, identifiable by their straight sides, help frame the puzzle’s boundary. These are often the starting point when solving traditional jigsaw puzzles as their flat sides make them easy to distinguish from interior pieces. Corner pieces, which feature two straight edges, are equally essential for defining the puzzle’s structure. Internal puzzle pieces, on the other hand, come in a variety of shapes such as “boots,” “spades,” or even “casts” depending on their unique cut and position in the puzzle.
Mass-produced jigsaw puzzles, particularly cardboard puzzles, are typically created using a die-cut method. This process involves using a metal die to stamp out puzzle pieces from a cardboard sheet, ensuring the pieces are fully interlocking. Wooden jigsaw puzzles or older handcrafted puzzles, however, may feature less uniformity, as they were often cut by hand.
Piece terminology extends beyond physical descriptions. Terms like “ribbon cut” and “random cut” denote the style of puzzle edge patterns, with ribbon cut being uniform and orderly, while random cut varies in shape. Knowing these terms enriches the solving experience, especially for competitive puzzlers or those working on challenging puzzles like shaped pieces or impossible puzzles.
The diversity in puzzle piece shapes and cuts not only adds complexity but also reveals the intricate artistry involved in puzzle creation. From a whimsy piece in wooden puzzles to flat-edged border pieces in standard cardboard puzzles, these unique features enhance the process of putting the pieces together into a single cohesive image.
Key Parts Of A Jigsaw Puzzle Piece
Jigsaw puzzle pieces feature distinct components that contribute to their interlocking functionality. Recognizing these features enhances the puzzle-solving experience and helps understand what are the parts of a jigsaw puzzle piece called.
Tabs And Slots

Tabs, also known as “knobs” or “interjambs,” are the protruding sections that extend outwards from a puzzle piece. These are essential for connecting adjacent pieces securely. Slots, referred to as “blanks,” “sockets,” or simply “holes,” are the inward-curved shapes designed to accept tabs from other pieces. Together, tabs and slots ensure puzzle pieces fit together seamlessly to form a complete image. The interlocking nature of these features is especially crucial in fully interlocking puzzles, where all the pieces rely on precise alignment.
Edges And Corners
Edge pieces are recognized by their straight sides or flat edges that help frame the puzzle. These pieces are typically the first ones sorted when starting a puzzle. Corner pieces, featuring two straight edges meeting at a right angle, define the puzzle’s structure and establish its boundaries. Both edge and corner pieces act as anchors, guiding the assembly of internal pieces. Edge pieces are vital in most puzzles, whether cardboard puzzles or wooden jigsaw puzzles, for setting up a firm outer frame.
Inner Piece Features
Internal puzzle pieces vary greatly in shape and design. Some have unique names, like “boots,” “spades,” or “castles,” describing their distinct protrusions or cut styles. These shaped pieces are often challenging and require careful observation to match the surrounding patterns, colors, and forms. In randomly cut jigsaw puzzles, internal pieces often feature irregular shapes that increase the difficulty. For competitive puzzlers, recognizing these intricate details can provide an advantage in completing puzzles efficiently.
Common Shapes And Cuts
Jigsaw puzzles feature diverse shapes and cuts, each designed to provide an engaging challenge and ensure all the pieces fit together seamlessly. Understanding these variations adds depth to the puzzle-solving experience.
Ribbon Cut Vs. Random Cut
The two primary styles of cutting jigsaw puzzles are ribbon cut and random cut. Ribbon cut puzzles feature uniform, grid-like pieces, commonly found in mass-produced cardboard puzzles. They often include predictable shapes, such as straight edges and interlocking tabs. This style simplifies the process, making it suitable for beginners.

Random cut puzzles, by contrast, have irregular and varied shapes, often resembling twisting or curving patterns. Each puzzle piece is unique, requiring more strategic thinking to assemble. Handcrafted wooden jigsaw puzzles, known for their intricate designs, often use random cuts. Competitive puzzlers and those seeking a more immersive challenge typically prefer this style.
Whimsical Shapes
Some puzzles include special pieces cut into recognizable shapes, called whimsy pieces. These shaped pieces might resemble objects such as animals, flowers, or human silhouettes. A multipiece whimsy is created when two or more shaped pieces form a larger, recognizable image, such as a bird or a tree.
Whimsy pieces add a fun, artistic element to puzzles while enhancing complexity. They differ from standard puzzle piece shapes, often connecting to adjacent sides in unexpected ways. Although most puzzles include traditional designs, whimsy pieces are prominent in wooden puzzles and premium handcrafted designs.
Purpose And Functionality Of Each Part
Each part of a jigsaw puzzle piece serves a specific purpose in ensuring the puzzle pieces fit together seamlessly. Tabs, often referred to as “knobs” or “interjambs,” protrude from the edges of a puzzle piece and interlock with their corresponding hollow spaces, called “sockets,” “blanks,” or “slots.” This interaction between the tabs and slots creates the secure fitting necessary to form the final image.
Edge pieces, recognizable by their straight edges or flat sides, are foundational to the puzzle. These pieces frame the complete picture and guide the solver by establishing boundaries. Corner pieces, which also feature straight adjacent sides, define the puzzle’s overall structure by anchoring its four corners. These structural pieces simplify the initial sorting process and provide a framework for assembling internal pieces.
Internal pieces exhibit various shapes and cuts, such as “boots,” “spades,” and “castles,” each adding complexity to the solving process. Fully interlocking designs, where all pieces fit without gaps, are common in cardboard puzzles and enhance stability. This precision is particularly noticeable in ribbon cut puzzles, where uniform shapes dominate, and in random cut puzzles, where irregular shapes present challenges for solvers and competitive puzzlers alike.
Specialty pieces, such as whimsy pieces found in handcrafted wooden jigsaw puzzles, elevate the artistic and functional aspects of the puzzle. These shaped pieces, often resembling animals, objects, or abstract designs, provide a fun and creative element while simultaneously increasing the challenge. By combining structural pieces like the edges and corners with creatively cut internal shapes, each jigsaw puzzle achieves a unique balance of form, function, and enjoyment.
Exploring the parts of a jigsaw puzzle piece reveals the intricate craftsmanship and thoughtful design behind every puzzle. From the interplay of tabs and slots to the variety of shapes and cuts, each element contributes to the challenge and satisfaction of solving. Whether you’re a casual puzzler or a dedicated enthusiast, understanding these details deepens your appreciation for the artistry and functionality that make puzzles so engaging.
Frequently Asked Questions
What are the main parts of a jigsaw puzzle piece called?
Jigsaw puzzle pieces consist of “tabs” (protruding parts) and “slots” or “blanks” (hollow spaces). Some pieces are also referred to as “boots,” “spades,” or “castles” based on their unique cuts.
What is the difference between edge and corner puzzle pieces?
Edge pieces have one straight side, helping to frame the puzzle, while corner pieces have two straight edges, defining the puzzle’s corners. Both types guide the puzzle’s assembly.
What are ribbon cut and random cut puzzles?
Ribbon cut puzzles feature uniform, simple shapes, ideal for beginners. Random cut puzzles have irregular shapes, offering a more challenging and strategic experience.
What are whimsies in jigsaw puzzles?
Whimsies are special puzzle pieces shaped into recognizable designs, like animals or objects, often found in handcrafted puzzles. They add artistic flair and increase complexity.
How do tabs and slots function in puzzle pieces?
Tabs and slots interlock securely, ensuring puzzle pieces fit seamlessly. This design helps create a complete image when the puzzle is assembled.
What materials are jigsaw puzzles made from?
Jigsaw puzzles are usually made of cardboard for mass production or wood for handcrafted, premium-quality puzzles.
How do internal puzzle pieces differ from edge pieces?
Internal pieces are irregularly shaped and fit within the puzzle’s structure, while edge pieces form the puzzle’s boundary and are easier to identify.
What enhances the puzzle-solving experience?
Understanding puzzle piece terminology, experimenting with cutting styles (ribbon or random), and using unique pieces like whimsies adds depth and enjoyment to solving puzzles.
Understanding the terminology behind the parts of a jigsaw puzzle piece adds a new layer of appreciation to this timeless pastime. From tabs and blanks to corners and edges, each piece plays a vital role in completing the picture. If you’re looking to enhance your puzzling experience, consider resources like making a jigsaw puzzle mat, creating your own puzzle board, and cleaning your jigsaw puzzle mats. For more puzzling fun, learn how long it takes to finish a 1,000-piece puzzle or brush up on the rules for jigsaw puzzles. With this knowledge, you’ll see every piece not just as a challenge but as a masterpiece in itself. Happy puzzling!